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2. Rotary mower - Wikipedia

   en.wikipedia.org/wiki/Rotary_mower

   An American rotary lawnmower mechanic (b. 1927) when queried as to the first rotary mower he knew of - produced a picture of a machine mass produced around 1939 which originally used a Ford Model A or B electric starter motor turned vertically with a steel disc attached to the output shaft having common sickle bar trapezoidal blades riveted upon it.

3. Lawn mower - Wikipedia

   en.wikipedia.org/wiki/Lawn_mower

   Many people experimented with rotary blade mowers in the late 1920s and early 1930s, and Power Specialties Ltd. introduced a gasoline-powered rotary mower. Kut Kwick replaced the saw blade of the "Pulp Saw" with a double-edged blade and a cutter deck, converting the "Pulp Saw" into the first ever out-front rotary mower. [10]

4. Rotary woofer - Wikipedia

   en.wikipedia.org/wiki/Rotary_woofer

   A rotary woofer is a subwoofer-style loudspeaker which reproduces very-low-frequency content by using a conventional speaker voice coil's motion to change the pitch (angle) of the blades of an impeller rotating at a constant speed. The pitch of the fan blades is controlled by the audio signal presented to the voice coil, and is able to swing ...

5. Solving Real-World Problems Is Key to Building Trust in AI

   www.aol.com/news/solving-real-world-problems-key...

   Google DeepMind’s Lila Ibrahim writes how organizations can improve innovation and get people more likely to embrace AI

6. Amazon Mechanical Turk - Wikipedia

   en.wikipedia.org/wiki/Amazon_Mechanical_Turk

   Amazon classifies Workers as contractors rather than employees and does not pay payroll taxes. Classifying Workers as contractors allows Amazon to avoid things like minimum wage, overtime, and workers compensation—this is a common practice among "gig economy" platforms. Workers are legally required to report their income as self-employment ...

7. Helicopter rotor - Wikipedia

   en.wikipedia.org/wiki/Helicopter_rotor

   An example of the effect of rotor blade number is the UH-72 (EC145 variant); the A model had four blades, but the UH-72B was changed to five blades which reduced vibration. [24] Other blade numbers are possible, for example, the CH-53K , a large military transport helicopter has a seven blade main rotor.

8. List of Saturday Night Live commercial parodies - Wikipedia

   en.wikipedia.org/wiki/List_of_Saturday_Night...

   Many of SNL ' s ad parodies have been featured in prime-time clip shows over the years, including an April 1991 special hosted by Kevin Nealon and Victoria Jackson, as well as an early 1999 follow-up hosted by Will Ferrell that features his attempts to audition for a feminine hygiene commercial. In late 2005 and in March 2009, the special was ...

9. Rotorcraft - Wikipedia

   en.wikipedia.org/wiki/Rotorcraft

   Some rotary wing aircraft are designed to stop the rotor for forward flight so that it then acts as a fixed wing. For vertical flight and hovering it spins to act as a rotary wing or rotor, and for forward flight at speed it stops to act as a fixed wing providing some or all of the lift required. Additional fixed wings may also be provided to ...